Electric brazing-machine.



1Mo. 353.3151. -PATENTED MAY 14, 1907.

. W. M. E-ULTCN. l ELECTRIC BEAZINC MACHINE.

. l ABPLIOATIONLFILED AUG.11,19D5.

attoznufl/ No. 853.351. l l PATENTBD MAY 14, 1907.

W. M. PULTQN.-I y' ELECTRIC BRAZING'MACHINB.

APPLIGATION FILED AUG.11,1905. l

4 snnnTs-gHBET-g.

witness@ 4 Usi-rrnn stri-urns, PATE-Nr err-ron..

IVESTON M. FULTON, OIT-KINOXILL'E, TENNESSEE,.ASSIGNOR TO THE FULTON COMPANY, OF KNOXVILLE, TENNESSEE, A CORPORATION OF MAINE.

ELECTRIC BRAZ-lNG-NIACHINE..

Patented May 14,1907.

Application filed August 11,1906; Serial 273,766.

1'0 (in-ZI, wlw/0711, zit 21mg/ concern/ Bo it known that I, WESTON M. FULTON, ofA Knoxville,- Tennessee, have invented a' new and useful Improvementv in Electric Brazing-Machines, which invention vis' ful-1y set forth in the following specification.

lThis invention relates to electrical brazing inachines, and especially to those for elec." "y

trically brazing tubing, used lfor brazing the overlapping edges of but which may b e sheets or plates of metal.

In electricall)r brazingmetal, especially in4 the brazingof the edges of long sheets of vthe seam; also in the displacement ofthe 'work by the longitudinal expansion f' the ated iroi'n the heating bars. 3.0

*i metal for the manufacture of tubesdiiiic ulty has been experienced in the warping of the electrically heated bars used for heating bars and the leakage of the current overthe insulating Aii'iediuin heretofore used for facing the heal-ing bars. l`)i il"iculties have alsovbeen experienced especially in electrically brazing the edges of thin sheet metal to form the. saine into cylinders in the unequal expansion of the-tube circumferentially, due to irregular heating, whereby the tube. would not have e. uniform' cross-section when iinished, and also in the unnecessary It is the object of the present invention to provide an electrical brazing machine which overcomes the above objections, and, to ei'lect the objects ofthis invention, I provide an electrical bra'zinfr machine in which the. overlappingr edges o? the metal are yieldingly -pressed together between opposing heating. iars, such as iron or steel, either 1n series circuit or in divided circuit, the heating bars being provided with means for permitting of their longitudinal cxpai'ision during heating by the current. Means, such as non-heat conducting clainpingbars of irezclay, are provided i'or .holding the heating bars yieldingly to the work, thereby cficcting'a con# centration of yheat on the seain, preventing the bars ffroin warping and maintaining the edges of the seam in proper relation to each other.

t woi'lr-lioldiiig carriage and 'clamping vice is also provided, into which thc sheet may he introduced, then moved to the heating bars, lapped and clamped, and lowered int-o brazii'ig position, thereby preventin` displacomciitof the walls of the tube whicii loss of heat radi- "material `'device taken on the frequently results in producing a tube of irregular' cross-section. Provision is also ma( e for preventing thev 'current leaking from the heating bars to the metal being brazedffbyinter )using sheets of insulating oi`-`a wir th greater-than the face of iiigbfar, as forexaniple, sheets of retaining 4tl'iecurrent in the latine' medium lf( 'am i'ivoiding ..in a loss of .uniformity of the ofi heat-ing bars pla p les ofthe seam to be brazed,'and ,thisi Aar gement is peculiarly useful finfbr'azing"tube-.seams to overcome uneven lefqeansion 'and'warping In order that the inventioninay be readily understood, reference is had? to' the accompanying drawings,. which are; designed merely as illustrations -to assist in the description of the invention, va'rid'not vin dei'ining the limits tliereoi` g Y Figure 1 is in part an end elevation and in p art a transverse vert-ical section through the line 1`-l,'Fig',f'2; Fig. is in part a side elevation and'in part a vertical longitudinal section on the line 2Q-42, Fig. l 3 Figs. 3 :ind-4 show a side and eiidelevation, respectively, of a modification; F'gij is. a

. Sametime securing Slo transverse vertical section on the linej-J,

upward and centrally through the top 2, of

vthe table is .a rigid standard formed of two upriglw' members 3, 4, bolted at' their lower ends a cross-brace 5, the munitie-r3 being broke' away in Fig. l to show the electrical connections, and elements behind the saine. This standard serves to support the self-adjusting heatingbar connections, and also a vertically adjustable horn, for the. \vorl To effect this purposethe upright member 4 has.

at its upper end a rectangular slot :3, into which loosely iits a block (i, preferably of in sulating material, such as wood, slidab'ly sup.

7, and having a certain ported i on rods amounto'f play back and forth in the line of IOC the heating bars extendedv Rigidly 'secured to plate 6, by means of bolts 8, are electric connecting plates 4t), 1U, the latter of which -has a slotted elbow extension-for yreceiving and'holding the lowerrheating barill. The upper connecting plate 9 is shorter` and has pivoted at its en d a heating bar s11pport`and connector 1`l,`also slotted-at its end and holding last therein heating bar 13. The 'pivot 1.4, about which c'on1'1ectoi-12 .oscillatesiis preferably' provided with a clamping means for maintaining theconnector in iirm electrical contact w'ith plate 9. For this purpose the pivot 14 isextended Ybeyond the connector 12, Fig. 9, and is provided with a stii'l' spring 15, which may be Vforced against the connector 12 by manipulation ol" an adjusting bol-t 16 and thereby hold'the connector in 'good electrical Contact4 with its plate 9.

Flexible cables '17 and 18 connect plates 9 a 'source of: current ,such ,as a

transformer' 19 or other current generator which 1t 1s umiecessary here to further de-v scribe. -Heating barsll and 13 are of metal as iron, steel, nickel, or. the like, `and capable of withstanding a high temperaturewithout.

having a comparativelv high resistance, such '-fusing. These bars 'are preferably of' small cross-section andare ot a length commenmga'reduced portion 21, is -iiimly ftio'n of heat at .the following means lMtW-een members gend '4 standard,'and iscapable ol' (lo'wn, as desired.

surate with ther length cfftube to be brazed.

o In order to protect-'such heating bars from undue warping duringheats to y.which they ply the heat to both brazed with the least unnecessary dissipa- 4point of application, the are employed: An arni or horn 2O ofrifrid material, such as iron, havheld by 22, and nut 23, of the upright adjustment upor the. repeated high are subjected and 'to apmeans of clampingplates 22,

Mounted on horn 20. is a trough-shaped 'rider"24,v Fig. 1, preferably el" cast iron, which 'supper-tss clamp-hariw made of nonconductine' and heat lagging material,. such. as well-ba lied fireclay or fire clay and plumbagri', the mixture being.common ly designatedplulnbago and used for making crucibles.

(,llainp-bar 25ilias provided -in its up'- j per side a groove 26 which is somewhat shal- 'pable otoscillating' on its lower than' the vertical thickness of the heatmg. 4and slightly u-'iden'whereby provision is made for lateral expansionlwhile the prevented from 'warpbar is at the same time ing; The upper heating bar 13 which iscapivot 14, similarly y engages while inpperationa heat-lagging t itself attached Clamp-bar 27. is supported in a yoke '29, made fasttherein by bolts 30, the yoke being to alever 31 by means-,of a

rod or`bo1t 32 passing through the yoke 2,9

sides of the seam being,

Vdrive-rod 45 haviligva arrangement a thrust of drive rod 45'to the and carries the work holding .prises preferably two L{s h secured to runners 48,-by means, suchl as jawsffor receiving ]?'o1ted to Vnear'each'en'd of the, movable carriage are l'iaving a similar groove 28.v

` lare caused to turn and flexible 'lever 31, and Amade iast tothe latter by means of. a nut liever 31 is pivotally supported at 3 4 -in an upright member 35,y preferably attached to the table. The outer andfreeeml of the lever, when the 'latter is in its lowered position,1 is subjected to a regulated pressure for which purpose a post 36, made fast to the floor, carries a stirrup 37, pivotally supported at the upper end of 'the post and is provided with. a screw- .threaded rod 38, having a suitable handle for in the stationary-frame' 3,9 by means'f'of rods 42 442 havingl their .outer ends bearing in the sides of frame 311 Near each end of rods '42, 42 are eccentricams '43, 43, which work in -ways 40, 40 vof 'the carriage supporting frame. Slrafts 42, 42, are .each provided with Vmeans for imparting thereto simultaneous move- In :n t, whereby movement Vimparted to the cams 431Will 'raise-0r 4lowerthe ways 40, 4() of the carria e supporting frame.' For this purpose 'sha ts 42, 42 are provided with 4l, thereby forming a carriage-supporting-frame..which `is supportedv pair of vertically movable roo crank arnes44, 44, which are connected by 'a ,handle 46. By this right will raise, and a reverse movement lower the ways 40.; Y

The carriage which moves on ways'4t), 40,

device, comaped pieces 47, 4'?,

tro

bolts 49, the-runners being provided with ',U flanges 5G, and rigidly secured together by a4 g topmember 5I.; .Sidetothe upright-members of the. U-pie'ces 47', "secure the latter-together. i v

' -Meuntd onthe carriageare sheet iro-n and holding the work, l and means for opening` and -closing the saine. upright pieces 47`.at oneside and sheet irony jaws 53 having semicircularfrecessesl 1n their outer .ends for' receiving thetube te be hraze'd. Compression jaws 54, 54,-

fastened together as by-a wooden strip 55," 'are hinged by pivots l56 tothe lower exten-v sion of rigid jaws 53, on which pivots 'jaws 54 l y means o f operating-VV against strip 55, only one screws 57 Abearing plates 52,52, bolted of such screws being illustrated. The

a crank handle 58, and has sprocket-Wheel 59 fast thereon, over which runsa sprocket chain 159 which transmits motion to a coinoperator to turn both screws simultaneously, whereby panion screw, thereby enabling the the clamping jaws 5-1' may be manipulated iol plctin together.

(i are thin insulating pieces,sucl:i as sheet mica, of a width materially greater than the faces of the heating bars 11 and 13, opposite which they are placed. It is desirable that these pieces ot insulating material should be very' thin to permit rapid transmission of the heat from the heating-bars to the. work to be brazed and ol such a width that there will be no leakage,A ol Acurrent beyond the edges of the bars. i

61 is a piece of' conducting metal, suchv as copper, interposed between the `ends ot the healing bars `11 and 13, and held in place by a clamp 62. rl`his is for the purpose Ofcomg' the circuit through tlre heating bars by means ot a low resistance connection, the clamp itselfV assisting in reducing the resistance. at. this point.

The device as thus far described operates as follows: rl`he lever. 31 is with it the heat-lagging clamp-bar 27. Heating bar 13 is turned back on its pivotal sup.- port and the uf'ork-liolding carriage., in the present instance designed to hold a tube, is

drawn to the lel't on its ways 40, been moved into their inward thrust of; the drive-rod 45; rlfhe e ank-handle 5S is turned to open outwardly the aw the tube which have 63 which is now inserted; A strip ot mica is placed `on top otheating-bar'1&1- and the carriage pushed back to its right`' hand position, thereby moving the tube over the heating-bar 11 which rests in the groove oi the'heat lagging clamp-bar 25. A strip.

ol" spe ter, together with a'llux such as borax is applied along one of' the edges oli the tube G3, then drive-rod 45 drawn to t-he left to lower the trame 40, v41 edge. olI` the tube onto the lower heatin ll.

and drop the inner Ilandle 58 1s now turned to force jaw 54 to the lett and thereby lay the upper edgsf of the tube over on vtop of the lower edge. so

as to havethe edges overlapwith the spelterv and flux between them. A thin strip ot mica is now laid on top of the overlapping upper edge and'heating bar13 is brought down on top ot this insulation. Lever 31 is lowered and with it clamp-ban27, which receives tl'ieheating-bar 13 in its groove 28, and vis then locked to upright 37. Screw $8 is run down on one end of' leXible lever 31 to yieldinglypress the clampbar on'to the seam. to be brazed. the. outer ends of heating lbars 11 andlB` is efe-Y `tremity 'of screw 57, F ig. 1, is provided with thrown up and v aised position by they 54 of the clamping device to receivey upon the 36 by stirrupsl inserte-d the copper bloclrl approximately of the combined thickness ot' the heating 'bars and insulation and held in place by T he velectric current, which is preferably an alternating one, is turned on and Jfor any particularinstant may be assumed to enter atcable 17 and take its course `through 12, 13, 61, 11, 1 and 18 back to its source. The current meets its lgreatest resistance in the heating bars to which it is 'completely confine-d by reason of the Wideinsulating strips of miea, which, by reason of'its'edge's extending materially beyond the'faces of the heatingbars, enables the latter to'iretain the current without leakage. As the bars heat up to the. desired tei'nperature the following occurs:

The heating-bars expand laterally'and longi-- tudinally, which, if notprovidedfor, would4 result in warping the bars and displacing the i parts. 'lhe lieating-barsjare keptjstraiglit by means of the retaining groovesjnthe,

heat-lagging clamp-bars25 and 27,- w-hich, at'

the same time, by reason of their low heat eonduetivi ty, prevent notdesired. bars, which, if restrained, particularly at the ends, gives rise to displacement, is taken up bv means of the block 6 to which. the bars are attached, and 'which adjusts itself to the various amounts ot expansion and contraction by 'moving on its supports 7, 7.

The grad ual transfer of heat through the miea insulation gradually melts the flux and spelter, and, together With the expansion of the iuetal, tends to displace the parts. -To overcome this objection, vcaused to exert a yielding or s )ring-pressure seam byineans of' t ielongelastic vlever-arm larities during brazing and form pressure at all times.

maintain a uni- VVhen lthe heatof the seam through'and through,

clamp-bar 27 is 31, to thereby follow these irreguto both sides ot the' loss `of heat to partsl `Longitudinal expansion of the ljing is completed the current is tu rnedoii ,l the "tube coole-d and removed. y i

Byusing two heating-bars, as above described, heat is applied .lilo seam, thereby efl'ecting the uniform he ating While, in, 'fthe easeot-the bar within the tube, the latter Y acts as aihood to prevent loss ot heat by radiai 1 5 8 show,'diagrammatically the central :i tre islioriner is attached.

I n A portion vvthan :it its ends. In order that this defect unifi be overcome theeleniping` jews 53 nud 54 hai-ve been provided on the carriage to l1 f\ld the tube :rigidly around `its peripher)Y nt both ends and preveir spreading. The Ijews nre iliade thin tout 'iid loss ot' heet by conditi-tion where they* eoinein A. Contact witltthe tube. ff

- In Figs. 3, l 'nud 7, is illustretedkt modifiention or the/,above invention, iitlhieh 63 is a. hase or support to whichithe lfreine ofthe nieehineninny be seciirelvboltedA .64 isle cest .iron l iiin'fe having,r :i llet base 65, toone side .of

which is .bolted the foot (i6-of n post 67, from which ,"irojects ii horn Sf vwhich ninity, when very lling, be provided with n hinged end support, ,lind in the top of which post is un opening Gil; Mounted in,A opening 69is :t bloc 70 'of ini Whiting nieternilflreely Inova-bleen rodS bloc J G, Fig. 2, (1)11 block 70 -is nioui1ti.\d n niet l connector 72, such ns copper, to which e br nch 73 ot e secoinhu'y ternnnnl 74 froin 75 is e heatingbnr'V uch es above described, extending from coni tctor 72,]1nving its extreniityin nieta-111e.

71,- find Inrforniing the suine function 0b; t the other secondary Vteninel 7S oi the tritnsfornicr. In the upperpnrt of the horn is :Ai `slot in which `rests n heat-legging clsnn i-ber 77j, preferably ininde of nre-clay or plunibngo, and, in which .is e narrow ehn iinel for receiving the heiiting bar ,75. Extending;r laterally `troni the to" bf ost 64 is nn extension" 79 i Ji, il i en. tying etits extren'iity arms 80, having fon s 8 1, in W lich'niovesniyoke S2- i'or holding a heet-legging clamp-bnr U3, in the lower `fitte of whiclji'iis a ehnnnelfor holding the up',- `perheating,bnr S4, one end of which is con- ,ilected to e cable 85 passing through the `voke Sililcuiling toitcrininill 78.

'yoke 82 :ind is similar to. block `7() above-de- ,lscribedi llngzlging e threaded openingn'i lthe extension. 10 is e sup )ort screw 88, 1pro'- Lvided at its upper end n'it in hnnd-whee its lower end oo'se in an openingr 1n traine 00 :nid having thereon n' lolloW-'bliiek 91 retained by :i nut/02 orv like ineens. .Within l'rnine 90, which is fest to voke 82, 'is n spring Ql held b'etween follow-block 01 and thetop of the yoke, wherebvn `wieldingl pressure may be applied to the voke through the agency of serexv. i

Forl the purpose ofi reti'irining the edges'of.

thcsheet inetail l'roin relative niovenn-nit during thelbrezi'ng operation, :1. side clamping device is provid ed comprising' ii pnn of steel ihere 94, 95, hinged on lugs 00 et the upper pnrt ol stendnrd tu, :ind having nl their tree ends iirlockn'ig inenns,sueh :is link 07,1nedelot condiicting or non-(mnductingr materiel, such :is inetnl or Wood plvoted to the extremity of one of the here 04 end havingr :it its opposite The opposite end Y har S4 is connected with a connector S6 Mounted `dn e. slidinpr block 87 carried by end e slot-carrying en eccentric eem 98, provided with e, handle 99, fwhereb the -eein may be turned down on' theend of :ir 95 and thereby force thebers 'against thewfork on the heat-lagging clamp-her,

The operation of thisv devieefmis similar to that first described,`-but differsin the follow! ing respects, and operetesinV the following Y mennen-#The hand-Wheel 89is turnedto raise the upper yoke in the guides orforks 81, el, Wltl'i it, the upper.` heating-ber S4.

-vThe side-clamp-bars 94'and 95 are" thrown aside iindthe work, sueh'as a 'tube orv similar body 100, previonsly'bent outl df true cylindrie'el form, is laced witlrts' `lapping edges over thelower li'eetingl'ier 75 on which is n sheet of insulating materiel 101 ,of e .Width greater then that of thefbnI-as previously expleined. The side-bers.' Mend 95' are brought against the sides of the tube .to pre-A vent spreading and their ends' chunpedtol gether by ineens of the link 97 and cem 0S.

The spelter und tinx:having been applied and the insulating sheets 101 placed in position, the upper heating-ber is lowered by turning handle Si), und, wl'ien tlit-x'henting-bitr rests on the work, e yielding pressure is applied thereto throufgh the ngenoy of spring` 93 by further traverse ol the screw 8S. Theheiiting-bers, 1t willbe noted, are not 1n series, :is

tubes of smell diinneter"ztiid'overeonics'the' tendency of the tubes to werp under the extreme diilerei'ice ol temperature between the seem and those the sen1i1,"e-s fully explained in 'connection with lge. 5, 6 :ind 8.-

lient-lagging chimp-bi1rs,'thc upper one only of'whicl'i priivided with n groove forreeeiving;` the limiting-ber 104. The'heeiting har 105 is within thc'tu'be :ind is insulitted'froiir the seine b v two Sheets ot insulating material 106, 107, the `former separating the upper 1` fece of the bar interposed between the low and the 'iiiner Well of the be in which the heating-bur and insulation rest. The chimpbzir 103 in thie c'onstriictioii direethr :figeinst the bottom oiI the tube'to he Welded.

A strip olE inicn or other insulnting' ninteriel interposed betweei'i -the upper healing-ber ln'tion has en nrce'gijeiiter than that ot' the fece ol" the heating har against which it rests. i Theiheating-bnrs ere preferably connected portions olthe tube opposite ln this inodilied construction 102, 103 ere the vicldingly d lsposed yface of the bnr lroin the senin, :ind the letter end the seein, epd eeoh strip or piece-of insul oi the.. tube. e

gethenwith a yielding pressure and the curto a source oi alternating current in the inaniier indicated in Figs. 1 and 2,'aiid have between tlieir opposite ends a block of copper, and the whole secured by a clamp, as above described. Y

Thetube .to be brazcd, which is somewhat. larger than the braZing-bar, is bent into a morefoi less elliptical shape, as indicated in Fig. l0, with its edges over-lapped with flux andv spelter interposed, and the iiisu'latioiis [interposed both between the baisand seam.,

and also the lower, heating-bar and thewall rent `turned on to heat the bars and fuse the flux and speltei, afteruwliich the parts are cooled, the tube removed and pressed into its i i1.. In an electric desired shape over a mandrel. vIt will be here noted that the lowerheating-bar iinpartsheat both to 'the seam and alsothroug-h the lower insulation to the part fot the tube diaineztrically'opposite the seam, j thereby overcoming the tendency to distortion bysettingup an opposing set of expansion linesy to those about the seam. and thereby causing a more uniform expansion of the tube and avoiding distortion.

What'is claimed is end of the same, to

respond to expansion and contraction of said heating `bari '1 2. In an electric brazing machine, the combination of heating bars, yieldingly ypressed clamping means for said bars, msu- Il ating means opposite the faces of said bars,

.Y f fandsel-adjusting end supports forsaid bars. Tij-3; In an electric brazmg machine, the

co iribfinatioii of heating bars, heat lagging vc amp-barsretaining said heating bars, and

i' nieansapplyi'ng a yielding pressure to one of said bars.v

)4,*In an' 'j' electric biazingimachine, the

lcoiribination of vheating-.b ars vheat-lagging clamp-bars havingretaining grooves for said 4heatingbars, and self-adjusting end supports. for'. said latter bars.

l," 5. In an felectlricybrazing machine, the combination of.- heating' bars, heat-lagging` I clamp-bars resting against and retaining said l heating-bars to hold the, latter against the seam to be welded, and work-clamping means awork-clamping Ifor rigidly holding the work.

`6.A In van electric biazing `machine, the combination of' heating bars, one ci which is stationary, a work-carrier. movable in' line with and under said stationary bar, a supporting frame .for said vcarrier provided with raising and-lowering'mearfs for the same, and

device on said. carrier.

brazing machine, the combination of' a pair of heatin bars, a movable support Jfast to the endo one bar and pivotally connected to one `end of lthe other 7. In an electric The bars are then brought toopenin Y brazing imachine, the 'combination of a heating bar and a self-ad- Justing support for one the said heating .heating b ars, 1otalv supporting means for the other of said pressed heat -lagging bar, and 'yieldingly heating bars clamp-bars for ,holding the against their work.

In an electric brazing machine, the coinbiiiationiof a pair of heating bars, one movable and one iixed, heat-laggingclampbars on 'one of which said iixed heating' bar rests anda horn for supporting said VVclampbar, a carriage movable in line 'with and iinder said heating-bar, work-clamping aws on said carriage, and operating -nieans for said clamping jaws.

9. In an electric brazing machine, the

combinationof oppositely disposed heatingbars, heat-laggingclamping-bars each havmg a groove for receiving la heating-bar, `a

bars, means for raising and lowering theotherlof said clamping-bars, andmeans for applying a yielding pressure to said movable bar.

10. In an electric brazing machine, the combination of heating-bars, a carriage movable in` line with and undensaid' bars, and

adjusting supporting member for said bars,

one of said bars being fast to said member fand theother having a pivotal -connection therewith, two heat-lagging clamp-bars each having av groove for receiving a heating bar, an adjustable horn for supporting one'of said,-v

and a yieldingly pressed pivclamp/bars, and circuit closing means for the free ends of said heating bars. I

Y .13; In an'ele'ctric brazingmachine, the

' combinationoftwo seam heating bars, one of Yijvhich'is movable and the'other stationary, a :work-holding carriage movable in line with Aand v beneath said stationary 4bar, carriage ways provided with 'means for raising and lowering the same, tub'el clampingjaws on said carriage, and opening and closing means for'said jaws.v` i

14. In an elctric brazing machine, the combination oftwo seam heating bars, one of which is movable relatively to the other, two

clamp-bars one of which is stationary an the'othermovable for pressing said heatingfbars'against'v the work `.to be welded, and a horn having a saddle for re- 15. In an electric -brazing machine, the combination of a heating-bar and means for ceiving said/stationary clamp-bar.

horn for supporting one of said clamping- IIO maintaining said bar in alinement during the passage. therethrough of an electric current.

`16. In an electric brazing machine, the combination of a heating-bar and heat-'lagging means for maintaining said bar in aline- Inent during the passage therethrough of' an electric current. Y i

17. In an electric `brazing `machine, the Icomblnation of a heating har, a heat-lagging clamp bar retaining said bar 'in ahnement under the action of theA heating current, and self-adjusting means connecting said bar with a. source oit-current.

1S. In an electric braaing` machine, the combination of a heating-bar and 'self-adinetingl I'neans' resp-ondingto the expansion and l contraction of said har anricomiecting said ing Witnesses. o 1 s y WESTON M. FULTON.

Witnesses: Y

E. J. HYATT,v JNO. P. RHEALV Vsubjected to a heating cur- 

